Respuesta :
The type of set that can be used to prove or disprove her claim is C. A set consisting of identical elements will disprove her claim.
What is a Claim?
This refers to the assertion or statement that is made about a particular thing that needs validation.
Hence, we can see that because Grace makes a claim about the interquartile range and how it can never be equal to its range, hence, to invalidate this claim, she needs to show a set consisting of identical elements will disprove her claim.
Read more about claims here:
https://brainly.com/question/13628349
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